Ian Dungavell the CEO of Highgate Cemetery looks at the grave grave of Dr Isachar Zacharie which stands lopsided amongst other decaying tombs in Highgate Cemetery in north London Thursday, Feb. 28, 2013. Zacharie, best known as Abraham Lincoln’s foot doctor, treating him and many members of the United States army during the US Civil War, died in London in 1900 and is buried in the same cemetery that also contains the remains of the philosopher Karl Marx . (AP Photo/Alastair Grant)